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                                                                                                                                淺談關于山梨酸鉀對人體的危害
                                                                                                                                來源:后王電子 編輯:深圳后王發布日期:2016-07-29 09:59:27

                                                                                                                                        山梨酸鉀

                                                                                                                                         什么是山梨酸鉀?


                                                                                                                                        山梨酸鉀為白色至淺黃色鱗片狀結晶、晶體顆?;蚓w粉末,無臭或微有臭味,長期暴露在空氣中易吸潮、被氧化分解而變色。山梨酸鉀易溶于水,67.6g/100ml(20 ℃);5%食鹽水,47.5g/100ml(室溫);25%糖水,51g/100ml(室溫)。溶于丙二醇,5.8g/100ml;乙醇,0.3g/100ml。1%山梨酸鉀水溶液的PH7~8。


                                                                                                                                        山梨酸(鉀)能有效地抑制霉菌,酵母菌和好氧性細菌的活性,還能防止肉毒桿菌、葡萄球菌、沙門氏菌等有害微生物的生長和繁殖,但對厭氧性芽孢菌與嗜酸乳桿菌等有益微生物幾乎無效,其抑止發育的作用比殺菌作用更強,從而達到有效地延長食品的保存時間,并保持原有食品的風味。其防腐效果是同類產品苯甲酸鈉的5-10倍。


                                                                                                                                        化妝品防腐劑。屬有機酸類防腐劑。添加量一般為0.5%??膳c山梨酸混合使用。山梨酸鉀雖易溶于水,使用方便,但其1%水溶液pH值為7-8,有使化妝品pH值升高的傾向,在使用時應予注意。


                                                                                                                                         山梨酸(鉀)能有效地抑制霉菌,酵母菌和好氧性細菌的活性,從而達到有效地延長食品的保存時間,并保持原有食品的風味。[2]   我們在選購包裝(或罐裝)食品時,配料一項中常??吹健吧嚼嫠帷被颉吧嚼嫠徕洝钡淖謽?,人們往往會誤認為可能是水果“梨”的成份。其實他們是常用的食品添加劑!不管他們對人體有沒有危害,明明白白的消費確是非常必要的,


                                                                                                                                         以下是深圳后王電子所整理的山梨酸、山梨酸鉀相關資料,僅供參考:


                                                                                                                                         山梨酸 (化學名稱:2,4-己二烯酸 分子式:C6H8O2 〕

                                                                                                                                         山梨酸鉀 (化學名稱:2,4-己二烯酸鉀〕 分子式: C6H7KO2 )

                                                                                                                                         山梨酸、山梨酸鉀性能、用途相似:山梨酸是國際糧農組織和衛生組織推薦的高效安全的防腐保鮮劑,廣泛應用于食品、飲料、煙草、農藥、化妝品等行業,作為不飽和酸,也可用于樹脂、香料和橡膠工業。

                                                                                                                                         由于山梨酸(鉀)是一種不飽和脂肪酸(鹽)它可以被人體的代謝系統吸收而迅速分解為二氧化碳和水,在體內無殘留。

                                                                                                                                        ADI 0-25mg/kg (以山梨酸計,FAO/WHO 1994)

                                                                                                                                       LD50 4920mg/kg (大鼠、經口)

                                                                                                                                      GRAS (FDA, 182.3640 1994)

                                                                                                                                     其毒性僅為食鹽的1/2,是苯甲酸鈉的1/40

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